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प्रश्न
Soil erosion can be prevented by
विकल्प
raising forests
deforestation
excessive use of fertilizer
overgrazing by animals
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उत्तर
raising forests
Explanation:
Soil erosion is the removal and transportation of the top layer of soil from its original position to another place with the help of strong winds and fast running rain water.
Soil erosion can be prevented by raising forests, as the roots of plants have an important role in preventing soil erosion. Roots hold the soil particles and reduce the exposure of soil to air and wind, thereby reducing its displacement.
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संबंधित प्रश्न
How is soil formed?
What are the methods of preventing or reducing soil erosion?
We know that many human activities lead to increasing levels of pollution of the air, water-bodies and soil. Do you think that isolating these activities to specific and limited areas would help in reducing pollution?
What is soil erosion? Explain means of preventing it.
Which of the following is not a greenhouse gas?
How can we prevent the loss of topsoil?
Following are a few organisms
(a) lichen (b) mosses (c) mango tree (d) cactus Which among the above can grow on stones; and also help in the formation of soil? Write the mode of their action for making soil.
Lichens are called pioneer colonisers of bare rock. How can they help in the formation of soil?
Fertile soil has lots of humus. Why?
Carbon dioxide is necessary for plants. Why do we consider it a pollutant?
